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Digit Frequency

<p><span style="color: rgb(14, 16, 26);">1. Each digit (0 to 9) denotes the student of the Optica Student community.</span></p><p><span style="color: rgb(14, 16, 26);">2. You are given a number n where ith digit denotes that ith task that is assigned to the corresponding digit student.</span></p><p><span style="color: rgb(14, 16, 26);">2. You are given a digit d denotes a student.</span></p><p><span style="color: rgb(14, 16, 26);">3. You are required to calculate the frequency of digit d in number n or how many tasks are assigned to student d.</span></p><p><br></p><p><br></p>

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Digit Frequency

easy

1. Each digit (0 to 9) denotes the student of the Optica Student community.

2. You are given a number n where ith digit denotes that ith task that is assigned to the corresponding digit student.

2. You are given a digit d denotes a student.

3. You are required to calculate the frequency of digit d in number n or how many tasks are assigned to student d.



Constraints

0 <= n <= 10^9 0 <= d <= 9

Format

Input

A number n A digit d

Output

A number representing frequency of digit d in number n

Example

Sample Input

994543234 4

Sample Output

3

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